File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes Testing and the fly likes problem with random ids in jmeter Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Engineering » Testing
Bookmark "problem with random ids in jmeter" Watch "problem with random ids in jmeter" New topic

problem with random ids in jmeter

Ganeshkumar cheekati
Ranch Hand

Joined: Oct 13, 2008
Posts: 362
i am generating random id for each request in my action class as follows in first method.

sUUID = String.valueOf(UUID.randomUUID()+"_"+request.getSession().getId());
request.getSession().setAttribute("UUID", sUUID);
sUUID = GenerateUUID.getMDF(sUUID);

and in other method which i need to execute using jmeter.

public String saveModelID()
String rResult = "input";
XSVCInt oXSVCInt = oSVC.getXSVCInt();
String sessionUUID = (String)request.getSession().getAttribute("UUID");
sessionUUID = GenerateUUID.getMDF(sessionUUID);
if (sUUID.equals(sessionUUID)){
rResult = oXSVCInt.savePartModelID(sPartNumber, sModelParam);
sModelSelect = null;
addActionError("Operation Failed");
catch(Exception e)

return rResult;

i have provided action in http request in jmeter and i need to provide input values so if i provide sUUID value then sessionUUID is generating other value(not equal) which results operation failed.
if i will not provide sUUID value then its null so getting nullpointerexecption.

how can i handle these kind of things in jmeter?

can anyone help me?

SCJP5 and SCWCD1.5
Think Twice Act Wise...
sugan san
Ranch Hand

Joined: May 23, 2013
Posts: 47
You should use csvconfigelement and session handling mechanism.

Please visit the following URL:
I agree. Here's the link:
subject: problem with random ids in jmeter
It's not a secret anymore!